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The Treaty of Vincennes, 1803/1804

The Treaty of Vincennes refers to two separate treaties. The first was signed in 1803 between the U.S. government and the Miami, Wea, and Shawnee nations.

The second was in 1804 between the U.S. government and the Delaware and Piankeshaw nations. The first of the two treaties, signed in 1803, sought approval from Native nations for a U.S. land claim around the capital of the Indiana Territory, the town of Vincennes. Called “The Vincennes Tract” it already had a bloody history. It was originally surrendered to Great Britian as part of the agreement that ended the French and Indian war in 1763. The U.S. captured the land during the Revolutionary War, claiming ownership by conquest. The second of the two Treaties of Vincennes, signed in 1804, bought further land in southern Indiana below and southeast of the Vincennes Tract. There were disagreements with some Native nations as to the tract’s exact boundaries.

Government land surveyor Thomas Freeman was responsible for the work of setting boundaries. Freeman left very detailed records of his survey, the path he took, and the lands he looked over. However, this record and his survey were hardly precise considering the methods of the time. They involved Freeman walking and marking the territories while doing his best to ensure such markings were accurate. As these kinds of surveys were rarely precise it was common for arguments and even conflict to break out because of the U.S. government and Native nations not agreeing as to where the treaty lines sat. Assorted tricks and clever wording were used by both Native and U.S. representatives to get the treaty lines they wanted.

Images

Treaty text<br />
Treaty text
One of the final pages of the Treaty of Vincennes, showcasing the name and marks of Native chiefs and representatives. Source: Courtesy of the National Archives
Treaty marker north<br />
Treaty marker north
A marker placed on the northern boundary of the Vincennes Tract located in Mitchell, Indiana. Source: Courtesy of the Historical Marker Database
Vincennes marker west<br />
Vincennes marker west
A marker placed along the western boundary of the Vincennes Tract, located near Sumner, Illinois. Source: Courtesy of the Historical Marker Database
Vincennes tract<br />
Vincennes tract
A survey map showing the Vincennes Tract in southwestern Indiana. Source: Courtesy of the Virtual Museum of Surveying
Indian Removals<br />
Indian Removals
Illustrated here is a color coded map of Indiana showing the names of treaties, the associated dates, as well as the lands those treaties were related to. Look in the bottom of the map to see both the Vincennes Tract and further land from the 1804 Treaty of Vincennes. Source: Courtesy of Wikimedia Commons Creator: ArnoldPlaton

Location

Map

Metadata

Alex Haehner, “The Treaty of Vincennes, 1803/1804,” Discover Indiana, accessed October 22, 2026, https://discoverindianahistory.org.curatescape7.reclaim.hosting/items/show/674.